Air Traffic Control ATC & Radio Channel Analyzer GFPE 2010
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1 Air Traffic Control ATC & Radio Channel Analyzer GFPE short descriptions GFPE 2010 e.ppt 1
2 Basics The communication between the air-traffic controller in the control tower and the pilot on board of his aircraft is operated by voice radio. This voice communication mainly transmits information on flight situation, position of the aircraft, altitude, air speed, or such like. The most important monitoring unit besides the radar is the aircraft radio. Therefore the idea of safety is a cornerstone for the whole air-traffic control system with highest requirements regarding reliability and availability. Air Traffic Control & Radio Channel Analyzer GFPE 2010 has been designed and developed to test and maintain existing and new communication networks for air trafic control ATC. FO, radio-relay analog and digital (E1) voice communication channels, AoIP, VoIP short descriptions GFPE 2010 e.ppt 2
3 Air Traffic Control System (ATC) short descriptions GFPE 2010 e.ppt 3
4 Operational Areas of the GFPE 2010 Monitoring Testing Maintenance Debugging of all transmission and reception lines in a AirFlight radio system as well as for all communication lines from an air navigation service short descriptions GFPE 2010 e.ppt 4
5 Example: AirFlight radio at airport Berlin Schönefeld, Germany short descriptions GFPE 2010 e.ppt 5
6 AirFlight radio at airport Berlin Schönefeld - Germany short descriptions GFPE 2010 e.ppt 6
7 Characteristics GFPE 2010 No. of integrated measurement systems 3 (analog, digital, (VoIP in preparation) Signal generators analog 8 Level meter analog Display Key sound evaluation EK-sound evaluation 4 frequences Signal propagation time analog SNR measurements Analysis of signals in E1 networks Insert of data in E1 data streems Signal propagation time in E1 networks Analysis of VoIP connections In preparation Monitoring of audio signals short descriptions GFPE 2010 e.ppt 7
8 Bloc diagram GFPE 2010 Beleuchtung Monitorverstärker LED-Test LED Dim Eingang Monitorabgriff LSP-Pegel 0dB, +20dB Lautsprecherverstärker nach Filter Abgriff des Monitorverstärkers Ausgang Eingang nach Filter Ausgang Stumm LSP +20 db Lautstärke KV KV KV KV Lautstärke Eingangsschaltung Eingänge RJ45 Messauswertung und Anzeige K1 K2 Messmodus Analog Eingangsdämpfung 0dB, -20dB Filterstufe Breitband Grafikanzeige EK-Pegel K3 K4 K5 D1 600 Ohm KS E1 VoIP E1 TS01 Decoder VoIP Digitaler Audio Stream Decoder D zu A D zu A KS KE NF BP 2040 Hz EK Messung Analog Pegel, SNR, 2040 Hz, EKUE Messung E1 TS00, TS16, TS31, BERT Framestatistik, Alarme etc. Messung VoIP MOS, Jitter, Delay, Paketstatistik etc. optional LÜW-Ton Kein Ton Hochtastton 2040 Hz Ereignisspeicher KF KF KE KS TS00, TS01, TS16, TS31, E1 Daten TCP und RTP Datenstrom KM Messkanal Dämpfung K1 K2 K3 K4 K5 KE 20 db Signalgeneratoren Ausgangswandler Ausgänge Ausgänge RJ45 Moduswahl Analog E1 VoIP GEN 600 KS 1000 Hz 2040 Hz Pegel Generatormodus Eingang Analog K1 K2 Filterstufe Breitband NF 2040 Hz EKUE KF Frequenz EK Hz Pegel Pegel KS Ausgang TS01 E1 A zu D Encoder E1 VoIP K3 K4 Frequenz Pegel K5 Digitale E1-Messungen KG intern BER BER EXT Schleife Analyse KM 1000 Hz Pegel D Hz KS KS KE Generator Pegel INT 1000 Hz EK 2040 Hz Hz EXT 1000 Hz EK 2040 Hz Hz KG Frequenz Frequenz EK Hz Pegel Pegel EXT 1 EXT 2 KG extern short descriptions GFPE 2010 e.ppt 8
9 Analog measurements Measurement and listening of analog signals Signal delay measurements between send and receive signal Signal to noise ratio (SNR) measurements short descriptions GFPE 2010 e.ppt 9
10 Measurement and listening of analog signals Measuring of audio signals with EK-sound-signals on a receiver output Summing signal 1000 Hz and 3300 Hz RX GFPE Verbindung Connection der to receiver GFPE mit output einem Empfängerausgang Display of signal level and EK-signal short descriptions GFPE 2010 e.ppt 10
11 Measurement and listening of analog signals Measuring of audio signals with key-signal on a transmitter input Summing signal of 1000 Hz and 2040 Hz GFPE TX Verbindung der GFPE mit einem Sendereingang short descriptions GFPE 2010 e.ppt 11
12 Signal to noise ratio measurement (SNR) Tapping of 1000 Hz signal at connector "EXT1" or "EXT2«with a interconnection to a line or a load. Reconnecting to an analog input. Measurement result: Continuous signal to noise ratio measurement short descriptions GFPE 2010 e.ppt 12
13 Measuring of signal propagation time in analog and digital networks Loop-back connection GFPE analog analog Loop-back connection GFPE MUX MUX analog 2MBit/s 2MBit/s analog short descriptions GFPE 2010 e.ppt 13
14 E1- Measurement Specification of E1 E1 represents a digital telecommunication interface at 2048 kbit/sec. 32 channels are transmitted in a TDM frame Standardisation: Data transmission ITU-T G.703 Format (Framing) ITU-T G.704 PCM-transmission format ITU-T G.732 PCM-Coding ITU-T G.711 Coding HDB3 PCM30, CRC short descriptions GFPE 2010 e.ppt 14
15 E1 - Measurements (ITU-T G.703 and G.704) Detection and measuring of framed E1 signals Splitting of a framed E1 signal in the different time slots Generating of a framed E1 signal alteration or suppression of time slots Loop test of E1 channels BER test, internal and external of framed E1 signals Evaluation of alarms and error bits of framed E1 signals Paste of error bits in time slots and frame bits. Statistics to no. of frames, bit errors and alarms short descriptions GFPE 2010 e.ppt 15
16 Measurement mode E1-loop-back There are several options for loop-back measurements 4-wire connection between transmit and receive channel Tx oder Rx senden transmit empfangen receive FPE Punkt-Punkt-Verbindung mit einem Sender oder Empfänger Point to point connection between transmitter and receiver 2-wire connection, only receive channel FPE FPE Sendepfad Transmit isausgeschaltet switched of Sendepfad Transmit is switched ausgeschaltet of empfangen receive empfangen receive Gerät Unit 11 senden transmit Gerät Unit 2 Gerät Unit 11 senden transmit Gerät Unit 22 Abtasten Detection of der a Empfangsverbindung transmit signal active einer 2 Mb/s bestehenden connection 2 Mb/s-Leitung Abtasten Detection of der a Sendeverbindung transmit signal an einer activebestehenden 2 Mb/s connection 2 Mb/s-Leitung short descriptions GFPE 2010 e.ppt 16
17 Measuring mode "Analyse" FPE FPE empfangen receive empfangen receive Gerät Unit 11 senden transmit Gerät Unit 2 Gerät Unit 11 senden transmit Gerät Unit 2 Einschlaufen Loop into an existing in eine 2 bestehende Mb/s-line 2 Mb/s-Leitung Einschlaufen Loop into an existing in eine 2 bestehende Mb/s-line 2 Mb/s-Leitung The GFPE 2010 is interconnected in an existing E1- connection short descriptions GFPE 2010 e.ppt 17
18 Display of status of E1 and alarms Continous display by active line Record and store of alarms Indication of alarms: LOS Loss of Signal no error LOF Loss of Frame error FAS Fehler Frame Alignment Signal no error CRC4 Fehler Cyclic Redundancy Check error AIS Alarm Indication Signal no error Remote AIS ext. Alarm Indication Signal no error short descriptions GFPE 2010 e.ppt 18
19 Recording of loop-back signal Logdatei: file: txt Record and store of E1 events Loop Schleifenmessung test: TT.MM.JJ hh:mm:ss KANAL;LOS;LOF;FAS;CRC4;AIS;RAIS;CAS Start :22:04 02;1;1;1;0;0;0; :22:34 02;0;0;1;0;0;0; :23:04 02;0;0;0;0;0;0;1100 Stopp Recording of a BER measurement Logdatei: file: txt Bit-Error-Test TT.MM.JJ hh:mm:ss LOS;LOF;FAS;CRC4;AIS;RAIS;BER;ES;SES Start :35:47 1;1;1;0;0;0;3.7126e-6;1; :35:57 1;1;1;0;0;0;2.2139e-6;1; :36:07 0;0;0;0;0;0;8.5741e-7;2;1 Stopp short descriptions GFPE 2010 e.ppt 19
20 The unit satisfies the requirements of following standard and recommendations: EUROCAE ETSI ITU-T G.703 CCIR ETSI EN CE VDE DIN short descriptions GFPE 2010 e.ppt 20
21 The delivery includes: 1 test cable 200 cm Pin 1,2 BNC to RJ45 Documentation 2 Adapter cable 200 cm 8-pole RJ45 to RJ45 1 test cable 200 cm Pin 4,5 BNC to RJ45 GFPE Adapter cable 50 cm 8-pole RJ45 to RJ45 GFP-PP interface 2 Adapter cable 200 cm Pin 1,2 G3P to RJ45 Y-Adapter 1 power supply cable 1 Adapter cable 200 cm crossed, RJ45 to RJ short descriptions GFPE 2010 e.ppt 21
22 short descriptions GFPE 2010 e.ppt 22
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